Inside his small hut near the Hidden Village's Battle Flag, speaking to Zuo Ci will allow you to change your character appearance in Wo Long: Fallen Dynasty. Thankfully, there's no cost necessary to do this.
The option will let you change everything you could at the beginning of Wo Long: Fallen Dynasty, including your character's gender and other drastic changes.
Alongside the character appearance option, you can adjust your hard-earned stats from Zuo Ci.
If you're tired of rocking a martial build with a particular armor set, you could easily swap your Virtue points to boost Wizardry Spells by speaking to Zuo Ci.
Changing your character's look in a game like Wo Long: Fallen Dynasty is a niche feature that some won't really care for, but it's nice to have. Luckily, changing your character on the fly is pretty easy to do once available.